Surveys

Survey operations 08 thru 14 nov by M/V oceanic sirius towing 12 12000 meter long cables in area bound by…

Western South Atlantic · Brazil-southeast Coast · HYDROLANT 3449/20

issued: 2020-11-07 21:40Z
status: cancelled 2020-11-12 20:57Z (archive)
authority: NAVAREA V 357/20 072135Z NOV 20.
position: -24.900, -39.827
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTHEAST COAST.
DNC 01.
1. SURVEY OPERATIONS 08 THRU 14 NOV
   BY M/V OCEANIC SIRIUS TOWING 12 12000 METER LONG
   CABLES IN AREA BOUND BY
   26-47.47S 042-25.97W, 24-22.02S 042-21.33W,
   24-22.40S 042-03.72W, 24-06.85S 042-03.35W,
   23-33.80S 040-58.57W, 22-50.33S 039-56.13W,
   22-35.07S 037-41.03W, 26-34.27S 037-35.22W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 15 NOV 20.

This area · survey operations

616 within 180 nm since 2000 · 5 in the last 12 months · 5 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations 13 thru 21 nov by M/V oceanic sirius towing 12 12000 meter long cables in area bound by…cancelled by · 2020-11-12

Nearby now · within 120 nm

Hazardous operations 0800Z to 2100Z daily 18 thru 20 aug in area within ten miles of 25-06.00S 041-13.00WExercises · 76.6 nm
Underwater operations in progress until 140001Z nov by M/V fugro vaquita in area bound by 22-03.00S…Surveys · 118.9 nm

Worldwide now

73 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.